Operating-tool.



0. w. SHERMAN. OPERATING TOOL.

APPLICATION FILED MAR. l7, I915.

1,210,857, I Patented Jan. 2, 1917.

"In, A.

@Wm 6 m ITE STATES PATENT @FFIQE.

CHARLES WILLIAM SHERMAN, OF PEORIA, ILLINOIS, ASSIGNOR TO B. C. LOWES, DOING BUSINESS AS LOWES MANUFACTURING 00., 0E PEORIA, ILLINOIS.

OPERATING-TOOL.

Specification of'Letters Patent.

Patented J an. 2, 1917.

To all whom it may concern:

Be it known that I, CHARLES WILLIAM SHERMAN, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented a certain new and useful Operating-Tool, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a tool for removing a section of the muscle known as the levator alee nasi, or nose elevating muscle of swine.

The object of my invention is to provide a tool for the above purpose, which shall be simple in construction, efficient in action and which shall be cheap to produce. With such a tool, a short section of the levator alee nasi is removed so that the hog loses control of the apex of the nose and having lost this control, also loses the desire and the ability to root and instead of the nose remaining in a state of irritation, the incision heals in a few days.

Referring to the accompanying drawing, Figure 1, is a side elevation of a tool embodying my invention. Fig. 2, is a front elevation of the same, and Fig. 3 is a plan view of the operating end of the tool.

The same numerals of reference are used to indicate identical parts in all the figures.

In its preferred form of construction, the tool consists of the upper jaw 1 which is a part of, and formed integral with the lower handle 2, and the lower jaw 3 which is a part of, and formed integral with the upper handle 4:.

The lower jaw 3 is preferably notched as at 5 to prevent the muscle from slipping out of place for the cutting operation and has its edges beveled to form cutting edges which coact with the edges of the upper jaw 1 so as to cut the before mentioned muscle in two places simultaneously in such manner as to remove a short section of said muscle.

The outer end of the lower jaw 3 is turned upward and is sharpened as at 6 and is extended sidewise at one side as at 7 for the purpose of providing a knife with which to make the necessary incision and also for elevating the muscle to bring it into proper position for the operation of the cutting jaws. Any suitable pivot pin 8 may be employed to maintain the parts in proper operating position.

To facilitate the production of the tool and to permit of easy renewal of the upper cutting edges, a plate 9 may be provided and attached by having one end bent around the pivot 8 and the other end formed as at 10 to embrace the outer end of the upper jaw 1 as will be readily understood.

In its preferred form of construction, the tool is made of pressed steel which may be suitably formed and have its cutting edges case hardened, though the structural details I may be modified in a great many ways without departing from the spirit of my invention, as for instance, making the lower cutting jaw separate from the body of the tool, or forming it of a set of plates instead of integral. Again, the tool might be cast or forged from any suitable material.

The method of performing the operation consists in first so securing the hog that he cannot move, whereupon the operator grasps the tool with the incision knife pointing downward and laying the tool along the elevating muscle, presses downward forcing the knife 7 through the skin of the nose of the hog and pulls the tool toward himself, thus making a sufficiently long cut. The operator then inserts the edge 6 of the tool under the muscle and forces the end of the tool under the muscle until said muscle lies in the notches 5, whereupon the operator presses the handles 2 and 4 together, cutting out a section of the muscle and releasing the tool. There are two of the levator alee nasi muscles in the nose of each hog and therefore the operation must be repeated on the other one, as will be readily understood.

It will be observed by referring to the drawing that the cutting edges are so formed that the cut is made by a shearing action.

Having thus fully described my invention, I claim:

In a hog operating tool, the combination of a pair of coacting cutting jaws each comprising a pair of cutting edges, a muscle elevating means comprising in part a cutting edge and carried by one of said jaws, and muscle retaining depressions in the cutting edges of one of said jaws.

CHARLES WILLIAM SHERMAN.

Witnesses:

L. E. BABE, H. A. EGOLF.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

